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Preparation of novel 4-substituted 6-methoxy-, 6,7-dimethoxy-, and 6,7-(methylenedioxy)isochroman-3-ones. 2

✍ Scribed by Khanapure, Subhash P.; Biehl, Edward R.

Book ID
115480204
Publisher
American Chemical Society
Year
1990
Tongue
English
Weight
687 KB
Volume
55
Category
Article
ISSN
0022-3263

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Radioiodination of 7-methoxy- and 6,7-di
Radioiodination of 7-methoxy- and 6,7-dimethoxy-4-bromomethylcoumarins
✍ Janina Baranowska-Kortylewicz; Zbigniew P. Kortylewicz 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 French ⚖ 278 KB

## Abstract Two coumarins, 4‐bromomethyl‐6,7‐dimethoxy‐2‐oxo‐2__H__‐benzopyran (1) and 4‐bromomethyl‐7‐methoxy‐2‐oxo‐2__H__‐benzopyran (3), were radioiodinated using trifluoroacetyl hypoiodite. The dimethoxy derivative 1 gave only a single regioisomer 3‐[^125^I]iodo‐4‐bromo‐methyl‐6,7‐dimethoxy‐2‐o